Cloth-stretching roller.



E. G. KNIERIEIVI.

CLOTH STRETCHING ROLLER. APPLICATION FILED OCT. Il. 1915. 1,205,905. Patented Now/.21,1916

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EINAR G. KNIERIEIVI, OF WESTGHESTER, NEW YORK.

CLOTH-STRETGHING ROLLER.

Application led October 11, 1915.

To all w wm it may concern Be it known that I, EINAR G. KNIERIEM, a subject of the King of Denmark, residing at Westchester, in the county of New York and State of New York, have invented certain new and useful Improvements in Cloth- Stretching Rollers; and 1 do hereby declare the following t0 be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apA pertains to make and use the same.

This invention relates to stretching rollers for fabric for use in textile mills and it has for an object to provide an improved typel of roller in which the longitudinally moving slats are so mounted as to provide for the proper lubrication thereof, and also to have said slats actuated by a cam in which twothirds of the revolution of said bars about said cam is consumed to gradually move said bars from one limit of movement to the other and the other third of the revolution about said cam serves to abruptly return said bars to their initial position.

Further objects of this invention is the provision of improved means for mounting the slats comprising the roller upon the shaft to permit easy removal of any of the slats and to also furnish rugged construction to withstand the wear and tear of such a roller.

Further objects will be apparent from the following specification, appended claim and drawings, thereof, in which- Figure 1 is a composite sectional view and elevation of the roller made in accordance with this invention, Fig. 2 is a cross section al view as on the line 2-2 of Fig-1, Fig. 3 is a bottom view of one of the bearing blocks, Fig. 4 is a sectional view therethrough, as on the line 4-4 of Fig. 3, Fig. 5 is an end elevation of said block, and, Fig. 6 is a detailed sectional view as on the line 6-6 of Fig. 2.

Referring to the drawings in which similar reference numerals indicate similar parts throughout the several views, there are shown standards 10 which may be those commonly used in machines of this character and supported by these standards are the hubs 11 which may be held against rotation and in adjusted position as by the set screws 12. These hubs support the cams 13 which will preferably be of special design to exert the limit of throw in two-thirds of the circumference thereof, and the return Specification of Letters Patent.

Patented Nov. 21, 1916.

Serial No. 55,316.

stroke in the remaining one-third to thereby more effectively stretch the fabric during the gradual movement of said cam through the two-thirds of revolution of the members to be hereinafter described about said cam. i

The `hubs 11 support the rotatable shaft 14 which has the reduced ends 15 which form shoulders to enga-ge the hubs 11 and limit the which the slats 20 are connected in lany desired manner. The bearing blocks 19 have ears 21 formed thereon which Aare recessed as at 22 to receive the pins 1S vand between the ears 21 is a space 23 which is adapted to receive a felt washer 24 which is saturated with the lubricant to afford the proper 1ubrication for said hearing blocks on said pins. These bearing blocks have bearing faces 25 which are formed by the central recessed portion 26 and the bearing faces 25 are adapted to engage the peripheries of the heads 16. These bearing faces are also provided with the ribs 27 which engage grooved portions 28 in the slats 20.

The end bearing blocks have the stems 29 which extend beyond the ends of the slats 20 and have the heads 30 formed thereon, which are provided with the threaded openings 31 to receive the screws 32 to support rollers 33 which are disposed between the side walls of the cam 13 as shown. 1t is clearly seen that by the removal of the screw 32, the slat from which said screw was removed indirectly through the bearing block may be easily removed from the roller by sliding said slat longitudinally from engagement with the pins 18 which support the same.

As the roller is formed of a plurality of slats of which those on the opposite sides of the center move in opposite directions, provision is made for maintaining substantiallyr a continuous surface between the slats and to accomplish this, the adjacent ends of the slats are halved together' to provide the necessary movement for each of the slats in a straight line. In order that these slats may have the desired gripping action on the fabric passing about said roller, each slat is provided with a metallic face 34 which is serrated or ribbed obliquely having the abrupt edges of the serrated face directed from the center of the roller.

It is clearly seen that the felt washers 24 afford ample lubrication for the sliding movement of said slats and said felt washer retains a sufficient quantity of lubricant to sufficiently lubricate the moving faces over an extended period and furthermore, no eX- cess lubricant is present to be thrown upon the fabric as by a centrifugal force in the rotation of the roller. The rollers 33 and cam 13 are disposed beyond the ends of the slats 20 so that said rollers and cam faces may be frequently lubricated. ln being disposed beyond the ends of the roller, it is impossible for any lubricant being thrown or conveyed from these faces to the fabric being treated. The shaft l5 will operate as in common vpractice, and it is apparent that the action of the slats to the opposite sides of the center is balanced so that no end thrust occurs when the machine is in operation as the opposite ends pull proportionately by the cams 13.

Various modifications may be made within the scope of this invention without departing from the spirit thereof and the drawings are submitted for illustrative purposes only.

Having thus described my invention, I claim :h #A cloth-stretching roller comprising a shaft, heads on the shaft, guide-pins on the heads7 two sets of slats forming the periphery of the roller, bearing blocks attached to the slats and slidable on the guide-pins Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

